Hot Air Generators
ENEVA designs and manufactures indirect hot air generators (Hot Air Generator / Indirect Fired Heater) for industrial applications that require clean and reliable process air. In these systems, combustion gases are completely separated from the process air, making them ideal for the food industry and other applications with strict hygiene requirements. Because process air is heated directly by fuel instead of a secondary fluid like steam or hot water, high efficiency is achieved.
- Indirect-fired hot air generation
- Compatible with natural gas, LPG, and liquid fuels
- Air outlet temperatures up to 300 °C
- Thermal capacity up to 7 MW per unit
WHY HOT AIR SYSTEMS?
Compared to steam-based air heating systems, ENEVA hot air generators offer the following advantages:
- Lower initial investment (no auxiliary equipment such as degassers required)
- Higher operational efficiency (no additional heat transfer cycle)
- Faster commissioning (no water volume needed)
- Simpler operation and maintenance requirements
These features make them particularly suitable for applications requiring direct and controlled heating of process air.
- Smoke-tube and multi-pass construction
- Horizontal or vertical design options
- Advanced mechanical solutions for thermal expansion
- Standard stainless steel construction (AISI 310S, AISI 304, etc.)
- Optimized refractory usage
- Controlled welding and quality procedures
- Post-manufacturing thermal insulation to minimize heat loss
DELIVERY SCOPE (OPTIONAL)
- Burner (recuperative, operating with ambient or preheated air)
- Flue gas recuperator
- Process air fan
- Air ducts and expansion compensators
- PLC control panel and flow safety instruments
- Frequency inverter for fans
RELEVANT APPLICATIONS
- Drying and baking processes in the food industry
- Spray dryer systems
- Industrial applications with hygiene sensitivity
- Hot air systems in chemical and process industries
Industrial Hot Air Generators – Technical Catalog (PDF)
Let’s Discuss the Most Suitable Hot Air Solution for Your Process
Each facility has different air flow and temperature requirements. Let’s evaluate the most suitable hot air and gas generation system for your process together with the ENEVA engineering team.
Submit a Technical Request- Direct heating of process air without using a secondary fluid
- Complete separation of combustion gases from process air
- High turndown burners for adapting to load variations
- System efficiency above 95% with flue gas recuperators
Each system is custom-engineered according to process air flow, temperature requirements, and operating scenarios.